Verified Answer :

\(20p + -5p - -17 = -13\) 

\(20p + -5p - -17 = -13:p\)  \(|Solve \ for \ p|\) 

\(20p-5p+17=-13\) 

\(15p+17=-13\) 

\(15p=-13-17\)  \(|Subtract \ 17 \ from \ both \ sides|\) 

\(15p=-30\) 

\(15p/15=-30/15\)  \(|Divide \ both \ sides \ by \ 15|\) 

\(p=-2\)

Krose1

Collect like terms.  15p= -30.   So p= -2.

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